I don't think you should have any problems, as long as you include all those trad pictures with civil marriage certificate which is the most important thing to add, make sure you explain everything very well in the questionnaire, the timelines and all. Also, like you said you are including all your previous tickets, that is very necessary too. The fact that you are spending that much on flights sef is enough to say that your marriage is genuine.
I feel you dear, with amount of money spent on flights, one could easily buy a jet, lol.
Remember, just include everything, bbm, texts, emails, pics, pics, and more pics of both of you and all.
You are covered